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Show 580 PROF. M . W A T S O N O N T H E [June 20, extremely accurate account of that anatomist. Only in one or two unimportant points did the viscera of m y specimen differ from those of Mr. Flower's example. In the latter the small and large intestines measured respectively 9 feet 6 inches and 15 inches in length, while in my own specimen they measured 10 feet 2 inches and 17 inches in length. In m y specimen the prostate gland was of much larger size than in Mr. Flower's specimen. As described by him that gland measured, if I understand the figures correctly, three quarters of an inch in length and one inch in breadth ; while in my specimen the gland was heart-shaped, the apex of the gland pointing backwards, and measured one inch in length and two inches in its greatest breadth at the base. Similarly in m y specimen the anal glands were each twice as large as those described by Flower. The difference in size of the prostate and anal glands in the two specimens is probably due to difference in age. I have before shown1 that in Hycena crocuta these organs only attain their full size in aged specimens ; and the same remark is probably applicable to Proteles cristatus. In every other respect (with the exception of the brain, which I did not examine) I found that the viscera accurately corresponded with the excellent description of Professor Flower. In a previous communication2 I pointed out that in Hyana crocuta the external and internal iliac arteries present a somewhat unusual arrangement, inasmuch as they come off as distinct trunks from the abdominal aorta. In Proteles cristatus these arteries present the same peculiarity. Hitherto, so far as I can ascertain, the muscular anatomy of Proteles has not been investigated. With the view of supplementing this deficiency I have carefully compared the muscles of Proteles with those of Hyana crocuta. The following notes indicate the points in which the muscular system of the former differs from that of the latter animal. It will be understood, where no mention is made of a muscle, that in Proteles the arrangement is identical with that which obtains in Hycena crocuta. In instituting this comparison I have availed myself of the paper on the anatomy of Hyana crocuta contained in the ' Proceedings' of the Society for the year 1879 3. Muscles of the Head and Neck. The sterno-cleido-mastoid exactly resembles that of Hyana, but differs from that of Viverra civetta, in which the " sterno-mastoid is quite distinct from the cleido-mastoid "4. 1 Proc. Zool. Soc. 1878, p. 419, footnote, and P. Z. S. 1881, p. 519. 2 Proc. Zool. Soc. 1879, p. 79. 3 Watson and Young, " O n the Anatomy of Hyana crocuta^ Proc. Zool. Soc. 1879, p. 79. 4 "On the Myology of Viverra civetta," by A. H. Young, M.B., ' Journal of Anatomy,' vol. xiv. This paper is taken as my authority on the myology of the Civet in making the comparison of the muscular anatomy of Proteles and Viverra. |